Reptilia LLC ROF-90 Geissele series features 7075-T6 aluminum construction with a black hard anodized finish. Designed as a base style mount for Geissele 30mm tube diameter scope configurations, this auxiliary optic attachment provides a direct rail interface mounting method to attach a secondary red dot at a 90-degree position. Safety Note Always ensure the firearm is unloaded before installing or adjusting any optics or bases. Verify proper torque specifications during installation. Improper mounting may affect accuracy and safety.